{x,y} = {4, -3}
Substitution :
// Solve equation [2] for the variable x
[2] x = 4y + 16
// Plug this in for variable x in equation [1]
[1] (4y+16) + y = 1
[1] 5y = -15
// Solve equation [1] for the variable y
[1] 5y = - 15
[1] y = - 3
// By now we know this much :
x = 4y+16
y = -3
// Use the y value to solve for x
x = 4(-3)+16 = 4
Word problem ideas for
4x+10
2(x-6)
Answer:
15
Step-by-step explanation:
need help quick
evaluate the expression
4x−5 for x=10
Answer:
35
Step-by-step explanation:
hi aaihe to JB by see bsuhs hi I'm s
Get the standard deviation of this data set:
64, 72, 91, 39, 16, 84, 41, 86, 10, 39
A.52.5
B.29.28
C.27.78
D. 54.2
Answer:
b
Step-by-step explanation:
PLEASE HELP ILL GIVE BRAINLIEST
Answer:
(-2,0) (1,0) (6,0)
Step-by-step explanation:
I used synthetic division which is a lot to explain so I would recommend googling it
Answer:
-12X - 2
Step-by-step explanation:
I don't know I have never done this i'm just going with my gut.
A bicycle store costs $1800 per month to operate. The store pays an average of $35 per bike. The average selling price of each bicycle is $75. How many bicycles must the store sell each month to break even?
Answer:
45
Step-by-step explanation:
1800 total
35 dollars per bike
75 bucks to sell bike
75-35= 40
40 bucks per bike
1800 divided by 40 = 45 so 45 bikes
A baseball diamond is a square that is 90 feeton
each side. What is the distance from home to
second base?
Answer:
x = 127 ft
Step-by-step explanation:
Answer:45 ft
Step-by-step explanation:X^2= (90ft)^2 + (90ft)^2
Need help, Simplify
2(-6+2) ÷ 4 =
Answer:
2
Step-by-step explanation:
2(-6+2)= -8 then divide it by 4 and you get -2
then 4 turns it positive
hope this helps ;}
please help om failing math..
Faith invested $81,000 in an account paying an interest rate of 2\tfrac{3}{8}2 8 3 % compounded continuously. Owen invested $81,000 in an account paying an interest rate of 2\tfrac{1}{2}2 2 1 % compounded annually. After 7 years, how much more money would Owen have in his account than Faith, to the nearest dollar?
Answer:633
Step-by-step explanation:
Answer:633
633 in delta math
Step-by-step explanation:
3x +y = -5
2x + 3y = -8
Answer:
Step-by-step explanation:
for 3x +y = -5
it's [tex]x = \frac{-5 -y}{3}[/tex]
and for 2x + 3y = -8 it's
[tex]x = \frac{-8 - 3y}{2}[/tex]
if y=3x^3+x^2-5 and z=x^2-12 what polynomial is equivalent to 2(y+z)
Answer:
2y + 2z
6x³+2x²-10 + 2x²-24
6x³+4x²-34 ■
Step-by-step explanation:
The polynomial which is equivalent to 2 (y + z) is 6x³ + 4x² - 34.
What is Polynomial?A polynomial is a type of algebraic expression in which the exponents of all variables should be a whole number. The exponents of the variables in any polynomial have to be a non-negative integer.
Here, y = 3x³+x²-5 and z = x²-12
Now,
2 ( y + z ) = 2 ( 3x³+x²-5 + x²-12 )
2 ( y + z ) = 2 ( 3x³ + 2x² - 17 )
2 ( y + z ) = 6x³ + 4x² - 34
Thus, the polynomial which is equivalent to 2 (y + z) is 6x³ + 4x² - 34.
Learn more about Polynomial from:
https://brainly.com/question/17822016
#SPJ2
Write the prime factorization of the number.
$74=$
Answer:
90
Step-by-step explanation:
Natalie is making costumes each costume has 4 buttons that costs 3 cents and a zipper costs 7 cents how much does she spend on buttons and a zipper for each costume?
Answer:
19 cents
Step-by-step explanation:
Natalie buys 4 buttons at 3 cents each. She also buys 1 zipper at 7 cents
We are to find the total amount that she spends for each costume
I converted cents to dollars.
4 buttons at 3 cents = 4x0.03 (3 cents is 0.03 dollars)
= 0.12
The zipper = 7 cents = 0.07 dollars
The total amount she spent = 0.12+ 0.07
= 0.19 dollars = 19 cents
Therefore she 19 cents in total for each costume
4 buttons at
what is the value of the expression 4⁴?
Answer:
256
Step-by-step explanation:
After a 80% reduction, you purchase a new washing machine on sale for $132. What was the original price of the washing machine?
The original price was $
$200
Step-by-step explanation:
80% 200 is equal $132
I am having trouble on algebraic expressions and numerical expression what is the easiest way to solve my problem and im in 6 th grade
Hi. you've asked an incomplete question. However, I provided some explanation about algebraic expressions and numerical expression.
Step-by-step explanation:
First, we may wonder: What is a numerical expression? In simple words, they are mathematical expressions that contain numbers and operations (like +, -, ÷, ×).
For example, 7+70, 90-10, 60÷10, 5×4 are numerical expressions.
While an algebraic expression on the other hand is a mathematical expression that contains at least one variable.
Variables are letters or symbols (like x, y, p, q, etc) that represent an unknown number or value in a mathematical expression.
For example, 7x+70, 90y-10 are algebraic expressions since they contain at least one variable.
solve 4/6 + 1/3
options:
6/6 or 1
7/6
5/3
12/6 or 2
Jayden's mother bought him the new PlayStation 5 Digital Edition for $420.15, including tax. She made him promise to pay her back in monthly installments. He made a down payment of $35.00 and paid the balance in 12 equal monthly payments. What was Jayden's monthly payment for this PlayStation 5?
A 32.10
B 35.01
C. 37.93
D 385.15
Answer:
A.32.10
Step-by-step explanation:
You have to remember to subtract the $35 then start to figure out how much he paid every month for a year.
Alex and his 3 friends went to the movies and got 2
boxes of candy, their total spent was $50. Miles and his friends went to the movies and got 3 boxes of candy, their total was $64. Remember each person needs to pay for a movie ticket, how much does a box of candy cost?
Answer:
$14 a box
Step-by-step explanation:
2x14=28, 50-28=22, 3x14=42, 64-42=22
PLS HELP WILL GIVE BRAINLIEST
Answer:
What he said
Step-by-step explanation:
Mark's favorite tree is a large oak
tree in his front yard. Mark wanted to
know how tall the tree is. At the
same time of day, he measured the
length of his shadow and the length
of the shadow cast by the tree. Mark,
who is 5 feet tall, cast a shadow 10
feet long. He found that the tree's
shadow was 140 feet long. How tall is
the tree?
Answer: The shadow of the tree is 280 feet long.
Step-by-step explanation:
We can use a ratio to solve this:
Use the Height to shadow for each. This works because the fractions must reduce to the same equivalent.
5/10 = 140/x
We can see that 5/10 is 1/2, so we need another fraction using 140 as the numerator that is equal to 1/2. That's easy here: Multiply 140 × 2 to get the new denominator, 280 that replaces x. That is the length of the shadow.
If you have a less obvious ratio, you can use Cross Multiplication to solve the unknown value in the ratio:
5/10 = 140/x Cross multiply the numerator of the left side times the denominator on the right side, and the denominator on the left side by the numerator on the right side:
5 × x = 10 × 140
5x = 1400 Divide both sides by 5 (the 5s "cancel" on the left)
5x/5 = 1400/5
x = 280
I hope this helps, especially when you see more questions like this in the future.
Please help me! I will give it 5 stars and I will heart the answer!
Answer:
Haha there is no question
Step-by-step explanation:
1a. Write the equation: You work during the summer mowing lawns. You charge 13
dollars per lawn. You made $819 for the summer. *
Your answer
1b. Describe your steps to find the number of lawns you mowed. *
Your answer
1c. How many lawns did you mow? Write a complete sentence.
Answer:
819÷13=63
Step-by-step explanation:
you divide 819 by 13 and you get 63
Answer:
1b) 819 ÷ 13 =63
1c) 63 lawns were mowed
Best Buy is having a HUGE sale. All items are 60% off. How much will you pay for a tv that originally cost $1200 including 5% sales tax?
Answer:
$480
Step-by-step explanation:
According to the problem, calculation of the given data are as follows,
Original cost including sales tax = $1,200
Discount = 60%
So, we can calculate the cost of TV after discount by using following formula:
Cost of TV after discount = $1,200 - ( $1,200 × 60%)
= $1,200 - $720
= $480
Hence, Cost of TV after discount is $480.
Do Now
Determine the coordinates of the midpoint of the line
segment with endpoints R(6,-2) and S(-3,-2).
O (1,2)
O (1.5, 2)
O (1.5, -2)
(3,-2)
Answer:
(1.5, -2)
Step-by-step explanation:
First subract -3 from 6 to find the total distance of the line segment.
6 - (-3)
Two negatives make a positive
6 + 3
9 units distance
Knowing this, the midpoint is 4 1/2 units away from either end. (1/2 * 9 = 9/2 = 4 1/2 units) Either add 4.5 to -3, or subtract 4.5 from 6 (keep the -2 though, as this line is straight!) to get the coordinates of the midpoint.
-3 + 4.5
-3 + 3 + 1.5
(1.5, -2)
6 - 4.5
6 - 4 - 0.5
2 - 0.5
(1.5, -2)
The midpoint of segment RS is (1.5, -2).
Solve.
-5 3/4 - 3 1/2
what the answer to 8/575
Answer:
71•8
Step-by-step explanation:
8/575
using long division method
the answer is
71•8
Let C represent the cost in dollars and R represent the revenue in dollars. What is the break-even point? Use a table to help if necessary.
C=24x+80
R=44x
Break Even point (_ , _)
Answer:
Please check the explanation.
Step-by-step explanation:
Given
C=24x+80
R=44x
To determine
What is the break-even point?
Given that
C represents the cost in dollars
R represents the revenue in dollars.
At the break-even point Cost (C) equals Revenue (R), so
R = C
44x = 24x+80
44x-24x = 80
20x = 80
divide both sides by 20
20x/20 = 80/20
x = 4
Thus, at x = 4 the value of Cost (C) equals Revenue (R).
i.e.
C = 24x+80 = 24(4)+80 = $176
R = 44x = 44(4) = $176
Answer:
(4, 176)
Step-by-step explanation:
Cause im smart and its right :3
The expression 4x/5-2x/3 is equivalent to?
Answer: The answer B
Step-by-step explanation: so the answer i got was x 5 so its B
Pls help?!!! 3 = a — 1
Answer:
4
Step-by-step explanation:
3= a -1
+1 = a. you pass the negative 1 to the other side.
and it turns to a + 1 and then you add it which
gives you 4
4= a
